• county
  • FIPS 29001
  • Largest town: Kirksville

Adair County, Missouri

Adair County had 25,660 residents in the Census Vintage 2024 estimate, on 567.3 square miles of land. It ranks 43rd of 115 in Missouri by population and 61st by land area.

Population
25,660
#43 of 115 in Missouri · #1,599 in US
Area
567.3 sq mi
#61 of 115 in Missouri · #1,804 in US
Density
45 / sq mi
#41 of 115 in Missouri · #1,569 in US
Median household income
$56,954
#52 of 115 in Missouri · #2,139 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Adair County within Missouri. Pin: Jefferson City.

Measure from here

Tools and pages that start from Adair County

Adair County population, land area and income

Adair County had 25,660 residents in the Census Vintage 2024 estimate, on 567.3 square miles of land. It ranks 43rd of 115 in Missouri by population and 61st by land area. That works out to 45.2 people per square mile, below the US average of 96.3, and above the national county median.

The median county-equivalent in Missouri has 19,100 residents; Adair County is somewhat larger.

Its SAIPE 2023 median household income of $56,954 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

25,660

3144th1st

1599th of 3,144 (US)

Land area

567 sq mi

3144th1st

1804th of 3,144 (US)

Density

45.2 / sq mi

3144th1st

1569th of 3,144 (US)

Median household income

$56,954

3143rd1st

2139th of 3,143 (US)

Rank within Missouri (115)

Population

25,660

115th1st

43rd of 115 (MO)

Land area

567 sq mi

115th1st

61st of 115 (MO)

Density

45.2 / sq mi

115th1st

41st of 115 (MO)

Median household income

$56,954

115th1st

52nd of 115 (MO)

How Adair County's population changed since 2020

Adair County gained 388 residents between the July 2020 and July 2024 estimates, a rise of 1.5%. That ranks 55th of 115 in Missouri for growth. The median Missouri county changed by +1.4%, and the state as a whole by +1.5%.

Since the April 2020 estimates base, Adair County recorded 1,185 births and 1,066 deaths, a natural change of +119. Net international migration added +617 and net domestic migration, people moving to or from other US counties, came to -396. The largest single component was international migration, which added 617 people.

25.3k202025.2k202125.2k202225.2k202325.7k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
1,185
Deaths
1,066
Net international migration
+617
Net domestic migration
-396
Change, July 2023 to July 2024
+429

Where Adair County is

The Census internal point of Adair County is at 40.190700, -92.603600. It sits in UTM zone 15N. The map shades Missouri's 115 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Adair County outlined. Dots are towns of 1,000+ people with residents in it.

Pettis County: +1.8%Henry County: +2.7%Texas County: +5.7%Madison County: +1.8%St. Louis city: -6.9%Cole County: +1.3%Washington County: +0.6%Macon County: -0.1%Barton County: +0.8%Grundy County: +0.1%Cedar County: +5.7%Randolph County: -1.6%Ray County: +0.3%Caldwell County: +2.0%Benton County: +6.1%Douglas County: +5.9%Shannon County: +3.4%Dade County: +0.5%Wright County: +7.1%Gentry County: +2.6%Lawrence County: +3.0%Cooper County: +2.9%Hickory County: +5.6%Moniteau County: +0.5%Dent County: +2.3%Monroe County: +2.3%Maries County: +0.7%Bollinger County: +0.5%Clinton County: +2.4%Knox County: +0.0%Webster County: +7.8%Harrison County: +0.4%Pulaski County: -0.1%Adair County: +1.5%Warren County: +7.7%Daviess County: +1.3%Audrain County: -1.9%Howard County: -0.1%Linn County: +0.4%Saline County: -0.1%Miller County: +3.6%Dallas County: +4.3%Morgan County: +6.7%New Madrid County: -6.8%Newton County: +4.8%Oregon County: +1.0%Franklin County: +2.3%Greene County: +2.9%Ralls County: +1.4%Lafayette County: +1.4%Livingston County: +4.8%McDonald County: +3.3%Barry County: +3.1%Cape Girardeau County: +2.2%Carroll County: -0.6%Christian County: +7.6%Vernon County: +0.6%Carter County: +3.0%Andrew County: -0.1%Jasper County: +2.9%Worth County: -4.9%Lincoln County: +10.1%Marion County: -0.2%Holt County: +1.2%Howell County: +2.4%St. Francois County: +1.6%Chariton County: +0.1%Butler County: -0.6%Iron County: -1.0%Perry County: +0.7%Cass County: +5.3%St. Louis County: -1.0%Dunklin County: -4.3%Wayne County: -1.1%Ozark County: +6.7%Laclede County: +1.9%Reynolds County: -2.5%Lewis County: -1.9%Taney County: +1.2%Ripley County: +0.4%Ste. Genevieve County: +0.4%Scotland County: -0.1%Putnam County: -3.1%Schuyler County: +1.5%Shelby County: -2.8%Boone County: +4.4%Mercer County: -1.7%Platte County: +5.6%Camden County: +3.1%Bates County: +2.1%Johnson County: +3.4%Sullivan County: -3.8%Atchison County: -3.1%Scott County: -0.2%Montgomery County: +2.0%Jefferson County: +2.2%Clark County: -0.5%Callaway County: +1.8%St. Clair County: +5.4%Buchanan County: -1.1%Pemiscot County: -7.6%Polk County: +4.6%Phelps County: +2.5%Stone County: +4.6%Osage County: +1.7%Clay County: +3.6%Nodaway County: -2.4%Crawford County: -1.0%Jackson County: +1.4%St. Charles County: +4.3%Mississippi County: -3.1%Pike County: +3.1%Stoddard County: -0.7%Gasconade County: -0.7%DeKalb County: -14.8%
Change 2020 to 2024
  1. < -0.7%
  2. < +0.5%
  3. < +2.0%
  4. < +3.6%
  5. ≥ +3.6%
no data

Orange pin: Adair County internal point. Dark pin: Jefferson City.

Internal point

Decimal
40.190700, -92.603600
DMS
40°11'26.52"N 92°36'12.96"W
UTM
15N 533742.3E 4448998.7N
Geohash
9znhsu2pg
Plus code
86G959RW+7H

Towns in Adair County

One incorporated place of 1,000+ people has residents in Adair County, 17,841 people together, or 70% of the county. Each figure counts only the part of the town inside Adair County; towns marked "part" extend into another county. The largest is Kirksville with 17,841.

  1. 01Kirksville17,841
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Adair County

The Census 2024 county adjacency file lists 7 neighbors for Adair County. The most populous is Macon County, MO, with 15,177 residents. Distances run between Census internal points in a straight line.

Distance to Jefferson City and the nearest big city

Jefferson City is 113.7 miles SSE of Adair County's internal point in a straight line. The nearest place of 100,000 or more is Columbia, MO (population 130,900), 87.2 miles away. The nearest place of 10,000 or more is Kirksville, MO (population 17,841), 1.6 miles away.

Adair County FIPS code

The FIPS code of Adair County is 29001: state code 29 for Missouri plus county code 001. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $56,954.

Questions people ask

What is the population of Adair County, Missouri?

The Census Vintage 2024 estimate for July 1, 2024 is 25,660. That is up 388 people (1.5%) from the July 2020 estimate of 25,272.

What is the FIPS code of Adair County?

29001. The first two digits (29) are Missouri; the last three (001) identify the county.

What is the largest town in Adair County?

Kirksville, with 17,841 residents inside Adair County in 2024.

Which counties border Adair County?

7 county-equivalents border it in the Census 2024 adjacency file: Macon County, MO; Linn County, MO; Sullivan County, MO; Scotland County, MO; Putnam County, MO; Schuyler County, MO; Knox County, MO.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.